Electrode holder



March 21, 1939.

c. B. JANDOS 2,151,552

ELECTRODE HOLDER Filed Oct, 16, 1937 1N VENT OR.

ATTORNEY.

Patented Mar. 21, 1939 UNITED STATES PATENr oFFlcE ELECTRODE HOLDERCharles B. Jandos, Craig, Colo.

Application October 16, 1937, Serial No. 169,352 3 claims. '(01. 21a-s)This invention relates to an electrode holder for yelectric Welders. Itoften is necessary for a Welder to lay the electrode holder andelectrode down while rearranging his work, etc. If the 5 holder orelectrode accidentally contacts grounded metals, they will are, burningthe electrode holder and electrode and causing not only damage to thecontacted materials but also iiashes which are very injurious tounprotected eyes. To

avoid this, it is necessary to carefully place the electrode oninsulated surfaces or shutoff the current supply thereto.

'I'he principal object of this invention is tocombine, with lanelectrode holder, means for` In the following detailed description ofthe invention reference is had to the accompanying 30 drawing whichforms a part hereof. Like numerals refer to like parts in all views ofthe drawing and throughout the description.

In the drawing:

Fig. 1 is a longitudinal section through the 35 improved electrodeholder in the welding position.

Fig. 2 is a side view thereof partially broken away in theout-of-service position.

Fig. 3 is an end view of the electrode holder 40 inthe position of Fig.2.

Fig. 4 is a cross section through the handle portion of the electrode.holder with the electrode gripping portion of the device foldedthereon. This view illustrates a clamping device which may 45 be used tohold the gripping portion against the handle.

. In the drawing v-a' typical welding cable is indicated at I0 with aweldingv electrode at II.

The improved holder comprises a handle 50 formed from :a tube I2 of hardrubber, iiber, Bakelite, or other electrical insulating material. Withinthe tube vI2 is an insulating bushing I3 supporting a terminal sleeveI4, into which, the extremity of the cable I0 is soldered or otheru wisesecured.

The sleeve I4 terminates at its forward extremity in a switch plate I5from the face of which a plurality of stationary parallel switch bladesI6 project.

The electrode gripping portion of the device 5 consists of a hinged jawmember II and a clamping jaw member I8, between which the electrode Ilis held. The clamping jaw member is mounted upon a hinge pin I9 in aclip 20 secured to the jaw member I 'I and terminates at its rearward 10extremity in a finger gripy 2|. A compression spring 22 constantly urgesthe two jaw members against the electrode II. The hinged jaw member IIis mounted upon a hinge pin 23 carried in a hinge pad 24 which isriveted or otherwise sel5 cured to the tube I2.

A series of swinging switch blades 25 project 'from the jaw member I1 atan angle which will enable them to pass between the stationary blades I6, when in the position of Fig. 1, and swing away from the blades I6when in the position of Fig. 2.

It can be readily seen that when in use with the jaws in the extendedposition of Fig. 1, an uninterrupted supply of current is fed from thecable III to the electrode I I. When not in use, the jaws are foldedback along the handle to the position of Fig. 2 so that the circuitbetween the cable I0 and-the electrode is completely broken at theblade'sfIG and 25 so that accidental elec- 30 tric contacts'wth themetal portions of 4the holder are impossible.

It is preferred to slot the stationary blades I6 as illustrated toincrease their ilexibility and increase their area of contact with theblades 25.

If desired, a spring clip 21, such as shown in Fig. 4, may be carried bythe handle I2 for engaging and holding the jaws in the o position.

While a specic form of the improvement has 40 been described andillustrated herein, it is desired to be understood that the same may bevaried, within the scope of the appended claims, without departing fromthe spirit of the invention.

Having thus described the invention, what is claimedV and desiredsecured by Letters Patent is:

1. An electrode holder' comprising: a handle member; an electric contactmember within said handle member; means for securing the extremity oi anelectric cable to said contact member; electrode gripping means hingedon the extremity of said handle member so that it may swingfrom anextended position in alignment with said handle member to a foldedposition alongside said handle member; and switch means projecting fromsaid gripping means so as to close a circuit with said contact memberwhen said gripping means are in the extended position and to break saidcontact when in the folded position.

2. An electrode holder comprising: a handle member; an electric contactmember within said handle member; means for securing the extremity of anelectric cable to said contact member; a hinge on the extremity of saidhandle member positioned to one side of the axis thereof; an electrodegripping member hingedly mounted on said hinge so that it may swing froman extended position in alignment with said handle member to a foldedposition to the side of said handle member; a switch blade formed onsaid .gripping member adjacent said hinge so that it will extend Withinthe extremity of said handle when in the extended position; and switchmeans formed on said Contact member within said hanamnistia dle soplaced as to be contacted by said switch blade as it enters said handle.

3. An electrode holder comprising: a ilrst jaw member; a second Jawmember hingedly mounted on said rst jaw member; a spring forcing saidsecond jaw member toward said first jaw member to clamp an electrodetherebetween; a hinge on the rearward extremity of said first jawmember; a tubular handle member attached to said hinge; a contact memberwithin said handle member; switch means projecting from said first jawmember into the extremity of said handle member into contact with saidcontact member so that as said jaw members are swung to the side oi saidhandle member on said hinge said switch means will withdraw from saidhandle member and break contact with said contact member; and means forconnecting said contact member to an electric cable. y

CHARLES B. JANDOS.

